What is the weight of an object in the air minus the buoyant force when in water called?

The term that describes the weight of an object in the air minus the buoyant force when it is submerged in water is known as its apparent weight. This concept arises from the principle of buoyancy, where an object submerged in a fluid experiences an upward force—known as the buoyant force—equal to the weight of the fluid that the object displaces. When you calculate the apparent weight, you take the actual weight of the object and subtract the buoyant force acting on it.

The result reflects how much weight the object seems to have while in the fluid, which is often less than its true weight due to the upward push of the water. This phenomenon is crucial in understanding how objects behave when submerged, influencing applications ranging from ship design to how divers manage their buoyancy underwater.